It appears Google has been rapidly expanding their new yellow ad label found on their search ads over the past week.
Google began testing these yellow ad labels on mobile search and then expanded the test to the UK and beyond. Now, it seems as if we are receiving two to three emails per day from readers saying they are seeing the new yellow ad label in the search results.
Here is a picture:
If I had to guess, this is the new AdWords ad format that will be rolling out officially on both desktop and mobile search results in the next couple weeks.